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Tugtupite and Anthophyllite Optical Properties


Anthophyllite and Tugtupite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Pearly   

Pleochroism
ModerateArthur Thomas   
When Fe-rich   

Dispersion
Not Available   
Not Available   

Transparency
OpaqueHerve Nicolas Lazzarelli   
Transparent   

Refractive Index
1.494-1.504   
1.603-1.690   

Optic Character
Not Available   
Biaxial/+   

Crystal System
tetragonal   
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   

Birefringence
0.008   
Not Available   

Clarity
OpaqueHerve Nicolas Lazzarelli   
Transparent   

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Tugtupite and Anthophyllite Optic Character

Tugtupite and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Tugtupite and Anthophyllite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Tugtupite and Anthophyllite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Anthophyllite has Biaxial/+ character.

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Tugtupite and Anthophyllite Transparency

Similar to their colors, Tugtupite and Anthophyllite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Tugtupite is OpaqueHerve Nicolas Lazzarelli while Tugtupite is OpaqueHerve Nicolas Lazzarelli in appearance.

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Red Gemstones


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